161740180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{165041}}^1$

素因数の和:165064

約数の個数: 36

約数和(自身を含む): 395110548

約数和(自身を除く): 233370368

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 165041, 330082, 660164, 825205, 1155287, 1650410, 2310574, 3300820, 4621148, 5776435, 8087009, 11552870, 16174018, 23105740, 32348036, 40435045, 80870090, 161740180]

約数ペア:

[(1, 161740180), (2, 80870090), (4, 40435045), (5, 32348036), (7, 23105740), (10, 16174018), (14, 11552870), (20, 8087009), (28, 5776435), (35, 4621148), (49, 3300820), (70, 2310574), (98, 1650410), (140, 1155287), (196, 825205), (245, 660164), (490, 330082), (980, 165041)]